X at ii ax v



Patented Nov.

No. 6l3,386.

N. P. MCKENNEY.

TOY.

(Application filed Mar. 11 1898) (No Model.)

a W 9 1 A a 1n QM UNITED STATES PATENT OFFICE.

.\'.\'i'll.\.\' l. Mt'iiliXXliY, t)! DIXON, lLllXtllS.

TOY.

SPECIFICATION forming part of Letters Patent No. 618,386, dated November 1, 1898.

Implication filed March 11,1898. Serial No. 673,441. No model.)

'1'0 aZZ whom, 7'15 may concern/.-

Be it known thatI, Nrvrnrtx l..\lcl(1zxx1-:v, a citizen of the United States, residing at Dixon, in the county of Lee and State of Illinois, have invented a new and useful Toy, of which the following is a specification.

My invention relates to toys and gan1es,and particularly to a game apparatus of the dartand-target type, and has for its object to provide a dart, adapted to be projected manually, whereof the feather is of four-wing construction and is formed from a foldablc blank of paper or other flexible material to adapt it to be replaced with facility; furthermore, to provide a simple and efficient means of attaehment of the feather to thcdart-shaft, and, furthermore, to provide a feather of the class named wherein each wing is spread toward its rear edge to form rearwardly-divergent side faces for pressure upon the air during the flight of the dart therethrough.

Further objects and advantages of this in vention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims.

In the drawings, Figure l is a view of a game apparatus, including a dart,constructed in accordance with my invention. Fig. 13 is a detail view in perspective of the feather end of the dart. Fig. 1] isa plan view of the same, showing the edge of one of the wings of the feather. Fig. i is a detail view of the rear end of the dart-shaft, the feather being omitted. Fig. 5 is a plan view of the blank from which the feather is constructed, the lines of folding being indicated by dotted lines. Fig. 0 is a view of a slightly-modified form of feather. Fig. 7 is a view of the blank from which the feather shown in Fig. 6 is formed.

Similar numerals of reference indicate corresponding parts in all the figures of the drawlugs.

In the drawings, 1 represents the targetsheet, adapted to be secured by suitable adhesive material or otherwise to a board 2 of a material adapted to be punctured by the metallic point 3 of the dart, said dart having a shaft 4, which is designed to be grasped manually and thrown to strike the target.

In order that the shaft of the dart may travel properly with the point in advance, it

is necessary to provide it with a feather 5, which in the construction illustrated is provided with four wings transversely alined in pairs or radially disposed with relation to the axis of the shaft, each wing being enlarged toward its rear edge or having its faces rearwardly divergent to increase the resistance by producing a wedge-like action upon the atmosphere. In practice I prefer to construct the feathcrof integral wings, having their inner edges in contact, and in order to attach a wing of this construction to the shaft of a dart I provide the latter at its rear end with longitudinal intersecting kerfs or slits (1, disposed at' right angles to each other, each kerf or slit being adapted to receive a wing and the several angles, formed at the intersection of the slots or kerfs, being adapted to fit in theaugles between the wings,as shown clearly in Fig. 2.

A simple form of feather may be eonst ructed, as illustrated, of a blank of flexible material, such as paper, (see Fig. 5,) which may be square,asillustrated. This blank is folded upon diagonal crease-lines 7 and diametrical crease-lines 8, the diagonal crease-lines forming the inner edges of the wings and being folded inwardly to form reentrant angles which are brought into contact to form the axis of the feather. From this axis radiate the wings, each of which is doubled and consists of two triangular folds a a, b b, the. (See Fig. The wings, as shown, are of right-angled triangular construction, with the right angle at the intersection of the rearwardly-divergent front and rearwardly-convergent rear edges of the wings. Although the diagonal fold-lines are brought into contact at the axis of the feather it is obvious that the resilience of the material forming the blank will cause the folds or cheeks of each wing to spread slightly toward their rear or free edges, said edges thus being separated and causing the checks to diverge toward their rear ends. The effect of this rearward divergence of the checks of the wings is to cause a greater resistance in passing through the air, and thus a greater steadiness of the shaft of the dart.

In the modified construction illustrated in Figs. 6 and 7 the blank is also preferably square and is provided with diametrical crease-lines T and diagonal crease-lines S", the diametrical crease-lines being in thiscase folded inwardly to form the rci ntrant angles occupying positions in coutiguity at thcaxis of the feather, the diagonal crease-lines forming the cxtcrior frontedges of the wings. In this form the wings have the same doublefold construction, the folds r: c, 1/ 11', &c., beiug arranged in approximate contact, but diverge toward the rear edges of the wings, and, furthermore, each wing is of right-an gled triangular construction, with the right angle at the inner end of the rear edge and with the hypotenuse forming the front edge. Thus in the modified construction the rear edges of the wings occupy a common transverse plane perpendicular to the axis of the shaft of the dart, while in the construction illustrated in Figs. 1 to the rear edges,as described, converge rcarwardly toward the axis of the shaft.

From the foregoing description it will be seen that the feather, which forms an important feature of the improved construction of dart, is formed from a single blank of foldahle material, such as paper or its equivalent, and is adapted to be folded upon diametrical and diagonal crease-lines, one of which is brought inwardly to form the inner edges of the wings, while the other is allowed to project to form the front edges thereof, whereby each wing consists of coextensive folds which are united or integral at their front edges to form a wedgelike divider to cut through the air with the least possible resistance. ()n the other hand, the checks of each wing diverge or checks to diverge toward their rear edges,

toward their rear edges to form a spreader, whereby the resistance offered to the air is increased toward the rear edges of the wings to insure the steady flight of the dart.

Yarious changes in the form, proportion, and the minor details of construction maybe resorted to without departing from the spirit or sacrificing any of the advantages of this invention.

Having described my invention, what l claim is 1. A dart havinga shaft provided with longitudinal slits or kerl's. a winged feather struck from a blank of flexible material and folded upon itself to form a plurality of coextensive triangular wings which ill't' titted contiguous to their lines ol intersection in the slots or kcrfs of the shaft, and of which the folds or checks diverge toward their rear edges, substantially as specilicd.

L. A dart havinga shaft provided with longitudinal slits or kerfs, a winged feather struck from a blank of flexible material and folded upon itself to forln a plurality of coextensive triangular wings which are fitted contiguous to their lines of intersection in the slots or kerfs of the shaft, and extending rearwardly beyond the extremity of the shaft, and of which the folds or checks diverge to ward their rear edges, substantially as specitied.

3. A dart havinga shaft provided with lon gitndinal radiallyalisposed slits or kerfs, and a winged feather constructed of a rectangular blank of flexible material haviugdiametrical and diagonal sets of crease-lines, of which one set is folded inwardly to form re entrant angles between the adjacent wings of i the feather, and of which the other set is folded outwardly to form the rcarwardly-divergeut front edges of the wings, the contiguous folds or cheeks of each wing being engaged with a slot or kcrf of the shaft to maintain the folds or checks in contact at the front end of the feather, and allow said folds substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixed my siguatu re in the presence of two witnesses.

NATHAN l ll (Jlx' lINX l'lY.

Witnesses:

W. H. \Yoom'x'rr, J. F. ftlCKIJNXEY. 

